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/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
/*
* This file is created based on MT8188 Functional Specification
* Chapter number: 5.5
*/
#include <device/mmio.h>
#include <gpio.h>
#include <soc/infracfg.h>
#include <soc/pll_common.h>
#include <soc/usb.h>
#define TRAP_USB20_P1_USBD1_EN 0x10005600
static void mt_set_trapping_pin(void)
{
/*
* MT8188 supports port0/port1 download. The hardware needs a trapping pin to
* select the port to use. When port1 is selected, the phy of port1 will be
* switched to port0. That is, port1 connector will be the physical line of
* port0. Since port0 phy isn't initialized in coreboot, switch back to port1
* phy.
*/
setbits32p(TRAP_USB20_P1_USBD1_EN, BIT(9));
}
void mtk_usb_prepare(void)
{
mt_pll_set_usb_clock();
mt_set_trapping_pin();
}
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